It would be rude for us to cover one of the twins without mentioning the other, so here she is. Her name is Ruby Evans, and we can't say for sure which one of the girls played Flora Carrow and which one played Hestia.
Like her sister, Ruby disappeared off the map after Harry Potter, and the best clue we can find on the internet to her current whereabouts suggests she went to study History at Glasgow University, so it's a fair bet that neither one of the twins currently does any acting at all. She looks happy enough in this picture, so there's no reason not to believe that the Evans sisters are happy with their life choices, and content to stay away from the camera's glare, much like their other sisters Scarlet and Velvet.